"....and then everything went black"
Im sorry but if I read this one more damn time I will quite literally throw my phone across the room idec
If you reallyyyy can't think of anything else then here :
"And darkness enveloped my perception into oblivion"
"...And all at once I am submerged into unconsciousness"
"And then the ubiquitous blackness completely extinguishes my consciousness."
Ok the last one is too dramatic but you get the point